These data demonstrate that the number of posts has decreased. Yes, we can conclude that quantitatively there`s less spam (although there`s no direct correlation between the decrease in the number of posts and spam, since it`s possible that participants generally began to write less, not less spam). But these indicators don`t say anything about the quality of written posts. Even if the number of shitposts has become less, this doesn`t mean that they have become of higher quality. Therefore, we can`t talk about solving the problem so far. In my opinion, the spam issue should be solved in two directions: it`s necessary to reduce the number of shitposts, but at the same time improve the quality of comments. And for this, an incentive is needed (in our case, the required number of merit to increase the rank). And it seems to me that 1 merit for motivation is extremely insufficient.